User authentication based on the chess graphical password scheme resistant to shoulder surfing. - V. A. Yakovlev; V. V. Arkhipov (Autom. Control. Comput. Sci., 2015)

Analysis of the constructing principles and methodology for evaluating the security of shoulder-surfing resistant graphic passwords. - V. A. Yakovlev; V. V. Arkhipov; Sergey E. Adadurov (Autom. Control. Comput. Sci., 2017)